Biolan Simplett Plus
#19 in Urine-divertingFull review
For seasonal cabins and garden outbuildings without power: a large capacity, unpowered separating toilet that empties into a composter.
Amazon $1,099$1,099
The Biolan Simplett Plus is the better toilet overall, rated 3.1 to 3.0. The Biolan Simplett Plus leads on value. The BioLet Mini wins on warranty. The Biolan Simplett Plus costs $151 less ($1,099 vs $1,250).
BioLet Mini
#22 in Urine-divertingFull review
For tiny houses and cabins with mains power that want a small diverting toilet that looks like a household fixture, with a drain option.
BioLet $1,250 BioLet $1,250$1,250
Prices were last checked October 31, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Which should you buy?
- Choose the Biolan Simplett Plus for value ($1,099 vs $1,250).
- Choose the BioLet Mini for warranty (3-year warranty vs 1-year warranty).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every urine-diverting toilet; a clear win is highlighted. How we rank explains each one.
| Factor weight | Biolan Simplett Plus | BioLet Mini |
|---|---|---|
| Overall rating | 3.1/5 | 3.0/5 |
| Value 30% | 24 $1,099 | 11 $1,250 |
| Capacity 25% | 65 solids capacity not published, urine can drain | 65 solids capacity not published, 2 gal urine bottle, urine can drain |
| Power 15% | 100 needs no power | 50 power draw not published (neutral score used) |
| Certification 15% | 50 NSF/ANSI 41 certification not stated (neutral score used) | 50 NSF/ANSI 41 certification not stated (neutral score used) |
| Warranty 15% | 0 1-year warranty | 50 3-year warranty |
Specifications
| Biolan Simplett Plus | BioLet Mini | |
|---|---|---|
| Capacity | ||
| Type | Urine-diverting | Urine-diverting |
| Urine bottle | - | 2 gal |
| Urine drain option | Yes | Yes |
| Agitator | No | No |
| Power and venting | ||
| Power | None needed | 120V |
| Vent size | 3 in | - |
| Build | ||
| Seat height | 18.3 in | 17.8 in |
| Dimensions | 20.9 x 26.8 x 40.2 in | 15.75 x 20 x 20 in |
| Weight | 22 lb | - |
| Warranty | 1 year | 3 years |